Just sharing

[frewind]

So the question is do these cheap devices help with Pine64 power metering of not?

Yes they will give you valuable information. It's not a perfect situation is all. If you want me to get really long winded I can.

Personally I would like the "long winded" version, as I may learn something that I can put to good use another time. I think that one of the great things about a forum like this you get to learn things from people who really do know there stuff...